The issues on the North American and European PC/Mac megaservers have been resolved at this time. If you continue to experience difficulties at login, please restart your client. Thank you for your patience!
Thanks for this solution, which works very well for me with my Windows 7.
PS: You really need to copy the new file over the old one so that the files are replaced and most of the existing files are kept, otherwise you'll lose the library. Don't make the mistake of deleting the old file and replacing it with the new one.